Method of calculating motor position using hall sensor
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United States of America Patent
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Jul 21, 2020
Grant Date -
May 30, 2019
app pub date -
Jul 5, 2018
filing date -
Nov 28, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A method of calculating a motor position uses a hall sensor. The method can include determining a motor position in response to a signal change of a hall sensor installed to a motor, calculating a basic compensation value for compensating a motor position error due to signal measurement delay of the hall sensor, determining whether a current command condition for a constant-speed operation of the motor is satisfied, calculating a first-up compensation value and a first-down compensation value, calculating an average values of the deviation between d-q axes current commands, and correcting the motor position using the basic compensation value when a difference between the average values is less than a reference average value.
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